‘Gravity’: How they got those shots

Interesting little behind-the-scenes piece today on “Gravity,” one of my favorite films this fall. Visual effects supervisor Tim Webber discusses how, after rejecting the idea of having the actors on wires against a green screen, his team created a “light box” — a giant cube made up of lighting panels that made it appear as if light was moving around the actors.

“It’s like a giant TV on the inside of the box,” Mr. Webber said. “So that gave the actors a sense of the environment around them.” If the scene involved Earth as the source of light, the actors would see a representation of the Earth inside the box.